Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c900e6c32fa156c…

MALICIOUS

PDF

42.2 KB Created: 2020-08-20 19:55:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5c83cb740cf136e838a85da89234186 SHA-1: c5c72b2b8c51769dd805dce60a9ca82ecf549817 SHA-256: 6c900e6c32fa156c0b25c6f3b9080c7694e3f9bf69a49dc4ea6f70ae2ddb0634
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to redirectors and potentially malicious content farms, disguised as a project report. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate a strong likelihood of malicious intent, aiming to redirect users to harmful sites. While no scripts were extracted, the embedded URLs and the document's structure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=geneva+mechanism+mini+project+report In PDF document text
    • http://files.gbmochas.org/uploads/1/3/0/8/130874480/37581f4e35e9b6.pdfIn PDF document text
    • http://xetiwut.mrsdinglesclass.com/uploads/1/3/2/8/132814930/lixututidinaf.pdfIn PDF document text
    • http://files.jamarkllc.com/uploads/1/3/1/3/131383251/zesimizerimag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/nodame_cantabile_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/70634230841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8366/8392/files/phoneme_segmentation_worksheets_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0672/8091/files/tuxumugukabipavez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7819/6129/files/millennial_generation_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/autobiography_example_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8313/7178/files/96914473972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/33395248552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0134/7226/files/33699359711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2109/0471/files/rigulixola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7991/6963/files/xilajuge.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: jamarkllc.com 3 samples

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F1 5308 bytes
SHA-256: 06aa6d8f51ffe97eec2ca77754caeaabf27ba3f8cb32a8cdb408092d5ec604b0
font_01_sfnt_off000079e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E0 9892 bytes
SHA-256: 1f69697f96158f617235bde5844106aaa8b3078571172f0c203062b2ed80f3f1

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